Index: ChapterX.API/Controllers/CommentsController.cs
===================================================================
--- ChapterX.API/Controllers/CommentsController.cs	(revision 73b69b22fa1e9888b8530a66db4a150efb8f52bc)
+++ ChapterX.API/Controllers/CommentsController.cs	(revision b373fea3e2c9d404606002f8e7ba265a82d68187)
@@ -6,4 +6,6 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
 
 namespace ChapterX.API.Controllers
@@ -63,6 +65,7 @@
         public async Task<ActionResult> Add([FromBody] AddRequest request)
         {
+            var callerId = int.Parse(User.FindFirstValue(JwtRegisteredClaimNames.Sub)!);
             _logger.LogInformation("Adding a new comment");
-            var response = await _mediator.Send(request);
+            var response = await _mediator.Send(request with { UserId = callerId });
             return Ok(response);
         }
@@ -78,5 +81,6 @@
             }
 
-            var response = await _mediator.Send(request);
+            var callerId = int.Parse(User.FindFirstValue(JwtRegisteredClaimNames.Sub)!);
+            var response = await _mediator.Send(request with { CallerId = callerId });
             return Ok(response);
         }
@@ -87,5 +91,6 @@
         {
             _logger.LogInformation("Deleting comment with ID: {CommentId}", id);
-            var response = await _mediator.Send(new DeleteRequest(id));
+            var callerId = int.Parse(User.FindFirstValue(JwtRegisteredClaimNames.Sub)!);
+            var response = await _mediator.Send(new DeleteRequest(id, callerId));
             return Ok(response);
         }